Marco,
Back in the day I used to proof read college textbooks, so grammar and spelling are biggies with me. As Royce noted when you are asking folks for $75,000 you need to do so very professionally, and glaring usage errors like "scent" vs. "sent" are big red flags. I'll also admit that I nit pick stuff like that to death!
Brian
"My father was very sure about certain matters pertaining to the universe. To him, all good things - trout as well as eternal salvation - come by grace and grace comes by art and art does not come easy." Norman Maclean, A River Runs Through It